An warware: tkinter mayar da hankali kan shigarwa

Gabatarwa

Tkinter ɗakin karatu ne na buɗe tushen mai amfani da hoto (GUI) don Python, kuma kayan aiki ne mai mahimmanci don ƙirƙirar aikace-aikacen tebur. Ɗaya daga cikin amfanin gama-gari na Tkinter shine ƙirƙirar nau'ikan da ke buƙatar shigarwar mai amfani a cikin widgets ɗin shigarwa, kamar filayen rubutu. Wani muhimmin al'amari na ƙirƙira da aiki tare da waɗannan widgets ɗin shigarwa shine kulawa da mayar da hankali: ƙayyadaddun ɓangaren aikace-aikacen zai karɓi shigarwar daga mai amfani lokacin abubuwan da suka faru na madannai. Wannan labarin zai ba da zurfin nazari kan sarrafa mayar da hankali a cikin widgets na shigarwa tare da Tkinter kuma zai bayyana sassa daban-daban na lambar daki-daki. Bugu da ƙari kuma, zai tattauna dakunan karatu masu alaƙa da ayyuka waɗanda ke taka muhimmiyar rawa wajen amfani da Tkinter don ci gaban GUI.

Fahimtar Mayar da hankali a cikin Tkinter da Widgets na Shiga

Lokacin haɓaka aikace-aikace ta amfani da Tkinter, yana da mahimmanci don fahimtar manufar mayar da hankali. Mayar da hankali yana nufin ɓangaren GUI wanda a halin yanzu ke karɓar shigarwar madannai. Widget din daya ne kawai zai iya samun mayar da hankali a lokaci guda. Yawanci, widget din da aka mayar da hankali ana nuna shi da gani, kamar ta hanyar haskaka rubutu ko nuna siginan kyaftawa a filin shigarwar rubutu.

• Babban aikin mayar da hankali shine tabbatar da cewa mai amfani zai iya yin hulɗa tare da sassan da suka dace na aikace-aikacen a hankali.
• Don aikace-aikacen tebur, sarrafa mayar da hankali shine muhimmin al'amari na ƙwarewar mai amfani. Lokacin da masu amfani ke kewayawa ta hanyar tsari, alal misali, ya kamata su iya motsawa tsakanin filayen shigarwa cikin sauƙi ba tare da rudani ba.

Don sarrafa mayar da hankali a cikin widgets na shigarwa, Tkinter yana ba da hanyoyi da yawa kamar su focus_set() da focus_get().

Magani: Sarrafa Mayar da hankali a cikin Widgets Shiga Tkinter

Maganin farko don sarrafa mayar da hankali a cikin widgets ɗin shigarwa shine yin amfani da ayyukan focus_set() da kuma focus_get() ayyukan da Tkinter ke bayarwa. Ga misalin yadda ake amfani da waɗannan ayyuka:

import tkinter as tk

def focus_next(event):
    event.widget.tk_focusNext().focus_set()

root = tk.Tk()

e1 = tk.Entry(root)
e1.pack()
e1.bind("<Tab>", focus_next)

e2 = tk.Entry(root)
e2.pack()
e2.bind("<Tab>", focus_next)

root.mainloop()

A cikin lambar da ke sama, mun fara shigo da tkinter module kuma mu ƙirƙiri aiki mai sauƙi, focus_next(). Wannan aikin yana ɗaukar taron azaman shigarwa kuma yana amfani da hanyoyin "tk_focusNext()" da "focus_set()" don saita mai da hankali kan widget din Shiga na gaba. Sai mu ƙirƙiri taga Tkinter (tushen) da widgets ɗin shigarwa guda biyu, e1 da e2. Ga kowane widget din shigarwa, muna ɗaure da maɓalli zuwa aikin focus_next(). Lokacin da Ana danna maɓalli yayin da e1 ko e2 ke da hankali, za a karkata hankalin zuwa widget din shigarwa na gaba.